VERIFIED SOLUTION i

Information How to tell Merge/Purge Plus that the input records are all Companies or all Personal Names

Merge/Purge Plus all platfroms
The NAMEDF parameter record is used to:
Specify the location and length of the name information in the input name-and-address records.
Optionally the Location and length of an Alternate Name field. 
Optionally set the "Name Type Flag". 

The Name Type Flag is position 57 in current versions of the software. 
The options are:
Blank Analyze each name, and treat it as a formatted name only if it appears to be a company name.
C     Treat all names as company names.
N     Treat all names as personal names
UPDATED:  March 16, 2018